Sea Forest

What Sea Forest does

Sea Forest Ltd is an Australian environmental technology company that operates the world's first commercial-scale land-based cultivation of Asparagopsis seaweed, native to Tasmanian waters. Its core product, SeaFeed™, is a livestock feed supplement based on bioactive compounds extracted from Asparagopsis that inhibit the enzymatic pathway producing methane in ruminant digestion, achieving up to 80% methane reduction in controlled settings and up to 67% in commercial settings while improving feed efficiency. The product range includes SeaFeed Natural (oil, pellets, lick blocks) and SeaFeed Amplify 5, which combines natural and manufactured bioactives to reduce dependence on cultivated biomass. The Triabunna facility is FAMI-QS certified, and the Sea Forest Enteric Methane Reduction Grouped Project is Verra-listed, enabling livestock producers to earn tradable carbon credits.

The company generates revenue through three streams: direct sale of SeaFeed supplements under multi-year enterprise contracts, monetisation of Verra-registered carbon credits generated by producer adoption, and technology licensing of its cultivation and formulation know-how. Its customer base spans Australian beef producers (Woolworths, Teys Australia, AACo), dairy operators (Fonterra), wool and sheep producers (M.J. Bale, Theory), food service chains (Grill'd across 61 locations, Three Blue Ducks, Brunswick Hotel), and distribution partners (Providore Global covering ~100,000 livestock with potential expansion to ~800,000 head). Go-to-market is enterprise field sales supplemented by channel distribution, with a consumer-facing sub-brand, Sea Fed Beef, that creates downstream demand pull through hospitality venues.

Sea Forest was founded in 2018 by Sam Elsom and Stephen Turner in Tasmania, received over $6 million in federal government grants between 2020 and 2021, and listed on the ASX (ASX:SEA) on 26 November 2025 through a $20.5 million IPO at a $112 million post-money valuation. As of H1 2026, the company reported $796,000 AUD in SeaFeed revenue (up 236% year-over-year) with 118,000 cattle under agreement and a $29 million cash position. The company is pursuing international expansion into Brazil (via Belterra) and Japan (via Oisix Ra Daichi) while scaling production capacity to supplement over 400,000 cattle annually from its Tasmanian sites.

Name

Sea Forest

Legal name

Sea Forest Ltd

Website

https://seaforest.com.au

Company type

Public

Founded year

2018

Operating status

Operating

Headcount range

101–250 employees

Short description

Sea Forest Ltd is an Australian environmental technology company that commercially cultivates Asparagopsis seaweed to produce SeaFeed™, a livestock feed supplement reducing ruminant methane emissions by up to 80%, serving beef, dairy, and wool producers across Australia and expanding into Brazil and Japan.

Ownership category

akta.pro rank

Product category

Livestock Feed Supplements

NAICS

Aquaculture (1125)

SIC

Agricultural Prod-Livestock & Animal Specialties (200)

akta.pro primary industry

Climate-Smart Farming & GHG Reduction (Emissions Accounting, Methane/N2O Reduction Practices) (AFAGAMAH)

Keywords

• Livestock feed supplements
• Methane reduction technology
• Seaweed cultivation
• Agricultural biotechnology
• Carbon credit programs

Headquarters

HQ city

Triabunna

HQ country

Australia

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. SeaFeed Product Sales: Revenue from sale of SeaFeed feed additive supplements to livestock producers. The company reported $796,000 revenue in H1 2026 with 236% growth, serving 118,000 cattle under agreement. Product is supplied through direct supply agreements and channel partners.
2. Carbon Credits: The Verra-listed Enteric Methane Reduction Grouped Project enables livestock producers to earn and trade carbon credits. The project began February 8, 2024 and runs for seven years, with producers earning VCS credits that can be traded or sold.
3. Technology Licensing: Sea Forest is commercializing its technology and know-how through farming, manufacturing and licensing of its technologies for production of SeaFeed supplements.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Sea Forest cultivates Asparagopsis seaweed at commercial scale in Tasmania and formulates the SeaFeed™ range of methane-reducing livestock feed supplements (oil, pellets, lick blocks) that reduce methane emissions in cattle, sheep, and dairy cows by up to 80% while improving feed efficiency. The company also operates a Verra-listed carbon credit program (Enteric Methane Reduction Grouped Project) enabling producers to earn tradable carbon credits and produces the Sea Fed Beef premium sub-brand.

Product overview

Sea Forest operates as an environmental technology company offering a product portfolio anchored by SeaFeed™, a methane-reducing feed additive derived from Asparagopsis seaweed. The product range includes SeaFeed™ Natural (oil formulation with replicated bioactives) and SeaFeed™ Amplify 5 (enhanced supplement with natural and manufactured bioactives in pellets/lick blocks). The company extends its offering through Sea Fed Beef, a premium sub-brand selling beef from SeaFeed-supplemented cattle to restaurants and consumers. Additionally, Sea Forest offers a Verra-listed carbon credit program enabling producers to monetize their methane reductions. The portfolio is unified by the core Asparagopsis cultivation and bioactive formulation technology, scaled through land-based aquaculture operations in Tasmania.

Differentiator

Problem solved

Functional benefit

Brands

• SeaFeed: Methane-reducing seaweed-based feed additive supplement for cattle and sheep, based on bioactive compounds found in Asparagopsis. Includes formulations such as SeaFeed Natural, SeaFeed Amplify 5 (containing natural and manufactured bioactives), and delivery methods including water-delivered, dry-lick, oil, pellets, and lick blocks.
• Sea Fed Beef

Products and services

• SeaFeed™ Seaweed-based methane-reducing livestock feed supplement derived from Asparagopsis, designed to inhibit methane production in ruminants by up to 80% while improving feed efficiency. Sold to livestock producers including beef cattle, dairy cows, and sheep operations.
• SeaFeed™ Natural Feed supplement that replicates the natural bioactives found in Asparagopsis seaweed, delivered via oil formulation for easy integration into farming systems. FAMI-QS certified.
• SeaFeed™ Amplify 5 Advanced feed supplement containing both natural and manufactured bioactives for enhanced methane reduction, delivered via pellets and lick blocks to suit various farming operations.
• Sea Fed Beef Premium Australian beef brand produced from cattle fed with SeaFeed, achieving up to 67% lower methane emissions while maintaining quality, sold through restaurants including Three Blue Ducks, Brunswick Hotel, and Grill'd.
• Sea Forest Enteric Methane Reduction Grouped Project (Carbon Credit Program) Verra-listed carbon credit initiative enabling livestock producers to earn verified carbon credits by using SeaFeed to reduce enteric methane emissions, with the project running for seven years from February 2024.

Quantifiable outcome

• Up to 80% methane reduction in livestock supplemented with SeaFeed (backed by peer-reviewed research in Journal of Cleaner Production, 2020)
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

18 partnerships are on record, tiered flagship, core and minor.

• BelterraflagshipStrategic or Co-development Partner · 2 March 2026International market entry partnership for Brazilian market expansion, pursuing regulatory approvals and commercial deployment of SeaFeed in Brazil's livestock industry.
• Oisix Ra DaichiflagshipStrategic or Co-development Partner · 2 March 2026International market entry partnership for Japanese market expansion, pursuing commercial deployment of SeaFeed in Japan's livestock industry.
• Woolworths GroupflagshipStrategic or Co-development Partner · 15 January 2026Multi-year commercial trial partnership with Woolworths Group, DIT AgTech, and Teys Australia testing SeaFeed supplement in Australian grass-fed cattle. Trial evaluates both water-delivered and dry-lick formulations to determine whether supplement can reduce methane emissions by up to 80% while delivering productivity gains such as improved weight gain and feed efficiency.
• Teys AustraliacoreStrategic or Co-development Partner · 15 January 2026Meat processing partner in the Woolworths-led multi-year commercial trial for grassfed cattle supplementation with SeaFeed, testing formulations for emissions reduction and productivity improvement.
• DIT AgTechcoreTechnology or Integration · 15 January 2026Technology partner providing water-delivery systems and dry-lick formulations for the multi-year commercial trial testing SeaFeed in Woolworths' grassfed cattle supply chain.
• Greener Cattle InitiativecoreStrategic or Co-development Partner · 15 January 2026Consortium created by Foundation for Food & Agriculture Research and Innovation Center for U.S. Dairy awarded two grants totaling $2.57 million to study bromoform as methane-reducing feed additive, with research led by Professor Joe Jacobs and Dr. Stefan Muetzel.
• Providore GlobalcoreChannel Partner/ Reseller/ Distributor · 26 November 2025Supply agreement with Providore Global covering approximately 100,000 livestock with potential for additional 700,000 head under discussion. Providore Global distributes SeaFeed products to livestock producers.
• Grill'dcoreChannel Partner/ Reseller/ Distributor · 25 October 2023World-first sustainable grass-fed beef burger using Sea Forest's seaweed supplement, rolled out to 61 Grill'd restaurants across Australia, reducing methane emissions by up to 67%.
• TheorycoreStrategic or Co-development Partner · 20 September 2023Partnership with fashion brand Theory to pioneer lower-carbon wool production by introducing SeaFeed supplement into sheep diets, achieving approximately 43% methane reduction.
• Three Blue DuckscoreChannel Partner/ Reseller/ Distributor · 10 July 2023Restaurant partnership to serve the world's first low-emission steak (Sea Fed Beef) at venues in Byron Bay, Rosebery (Sydney), and Brunswick Heads.
• AACo (Australian Agricultural Company)minorStrategic or Co-development Partner · 15 November 2022Pilot program with 81 wagyu cattle incorporating Asparagopsis seaweed into feed, co-funded by Meat and Livestock Australia to lead sustainability in Australian meat sector.
• Meat and Livestock AustraliaminorStrategic or Co-development Partner · 15 November 2022Co-funder of pilot program with AACo for wagyu cattle supplementation trial, supporting industry-wide sustainability initiatives.
• 4 Pines Brewing Co.minorGTM or Marketing Partner · 12 October 2022Collaboration on climate-conscious brew 'Why Is There Seaweed In My Beer?' - a Tasmanian Pilsner with Nori seaweed to encourage discussion around livestock methane emissions.
• M.J. BalecoreStrategic or Co-development Partner · 9 May 2022World-first commercial trial to produce Carbon Neutral Wool via SeaFeed supplement for sheep. Partnership aims to create possibly the world's first net zero-emission woollen knitwear.
• James Cook UniversitycoreStrategic or Co-development Partner · 7 July 2021Research partnership with James Cook University's College of Science and Engineering for algal biology, chemistry, and aquaculture. Professor Emeritus Rocky de Nys co-authored seminal scientific papers on Asparagopsis.
• University of TasmaniacoreStrategic or Co-development Partner · 7 July 2021Research partnership with University of Tasmania including Dr Masa Tatsumi's work on kelp forest restoration and coastal environment rehabilitation. Includes kelp restoration project witnessed by Danish Royals.
• University of WaikatocoreStrategic or Co-development Partner · 7 July 2021Research partnership with University of Waikato in New Zealand, with Dr. Marie Magnusson leading Macroalgal Biotechnology Enterprises team for sustainable seaweed aquaculture development.
• FonterracoreStrategic or Co-development Partner · 14 May 2020Partnership with Fonterra for on-farm trials testing Asparagopsis seaweed as supplement feed for dairy cows to reduce greenhouse gas emissions. Trial expanded across multiple farms to test supplement application at commercial scale.

Scale indicators12 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• CH4 Global: Australian company developing Asparagopsis-based feed additives to reduce enteric methane in livestock. Most direct competitor with comparable technology approach targeting similar beef and dairy markets globally.
• Symbrosia: Hawaii-based startup cultivating Asparagopsis seaweed for livestock methane reduction, with similar product offering and customer focus on cattle producers. Direct competitor in the seaweed-based feed additive category.
• Volta Greentech: Swedish company producing seaweed-based feed supplements to reduce methane emissions in dairy cattle, with similar climate-tech positioning and direct-to-farmer feed supplement business model targeting European dairy producers.

Broad incumbents

• dsm-firmenich: Global animal nutrition leader producing Bovaer (3-NOP), a synthetic methane-reducing feed additive approved in multiple markets. Direct competitor to SeaFeed in the methane-reduction feed category, with established distribution and major feed industry partnerships.
• Cargill: Major global agribusiness with extensive animal nutrition portfolio and supply chain reach into beef and dairy producers. Could partner with or compete against Sea Forest given its scale and customer relationships across the livestock value chain.
• Elanco Animal Health: Major animal health company with portfolio across livestock pharmaceuticals and nutrition, increasingly focused on sustainability and methane reduction solutions. Broad incumbent with capacity to enter the feed additive space.

Emerging players

• Alltech: Global animal nutrition company with algae-based feed products and sustainability focus. Emerging player in methane-reducing feed additives with broader portfolio and established distribution in livestock markets.
• Mootral: UK-based company producing garlic and citrus-based feed supplements to reduce methane emissions in cattle. Alternative natural-feed approach competing in the same methane-reduction feed category with a different bioactive mechanism.

Others

• Indigo Ag: US-based agricultural technology company with carbon credit programs for farmers. Adjacent in agricultural carbon credit monetization, though focused on different underlying practices like soil carbon and fertilizer optimization.
• Cermaq: Norwegian aquaculture company with seaweed cultivation operations as part of integrated marine farming. Adjacent in marine cultivation technology and infrastructure, primarily focused on salmon farming with seaweed as a complementary activity.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/seaforestaus
• LinkedInlinkedin.com/company/sea-forest-australia
• Instagraminstagram.com/seaforestau
• Facebookfacebook.com/seaforestaustralia
• YouTubeyoutube.com/@seaforestau

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sea Forest